John m



(No Model.)

J. M. SMTH.

SEAL LOCK PoR GAB, Doros. y

Patented Peb. 2 1886.

WITNBSSES: 7; f

INVBNTOR,

ATTORNEY.

UNITED STATES PATENT OFFICE..

JOHN M. SMITH, OFA KANSAS CITY, MISSOURI.

SEAL=LOCK FOR CAR-DOORS.

SPECIFICATION forming part of Letters Patent No. 335.250, dated February 2, 1886.

Application filed September 1i, 1884. Serial No. 142,805. (No model.)

and exact description.

The object of my invention is to provide suitable means for locking and sealing the doors of freight-cars in such a manner that the main locking devices will be so permanently incorporatcd within the car-body that even if the door becomes detached they cannot be mislaid or lost or the door opened after sealing until the seal or some portion of the car has been visibly destroyed.

My invention consists in applying to the door-post a movable staple or seal-bolt, or equivalent that is in the form of a bolt, carrying a hook upon the outer end similar to the head of a common staple, over which the eye of the door-hasp is adapted to be placed and locked thereon by means of an apertured frangible seal, that is subsequently attached to the said hook. The inner extremity of the said staple or bolt is provided with a stopshoulder and an indenture or keeper for engaging a spring-actuated bolt or bar when the seal has been attached to the said hook, and the bolt carrying the same has been pressed inwardly to a locking position. Said spring actuated bolt is operative by hand to release the movable staple from the inside of the ear when the door is open.

Reference is to be had to the accompanying drawings, formingjpart of this specification, in which similar lettersof referenceindicate corresponding parts in each figure.

Figure lis an elevation of a portion of a car-door that is locked and sealed by means of my improved device. Fig. 2 exhibits the same with the seal detached and the door partly open. Fig. 3 is aplan of the whole apparatus as applied to the car-timbers, and Fig. 4 is aside view of the improved movable staple enlarged.

In carrying out my invention I prefer to bore an aperture, P', for the movable staple or seal-bolt P, somewhat larger than the body thereof to avoid binding, directly through the door-post M and the casing-strip H, and to the inner end of the aperture thus formed I apply the thimble a, which not only closes the aperture upon the inside of the car, but forms a metallic bearing for the end O of the said staple P. The hole g for the spring-actuated bolt g is next bored at a right angle to and intercepting the first mentioned, commencing upon the side of the post M opposite the doorway. This opening is lined its full length with the open-ended thimble d. The said spring-bolt g has a collar, o', integral therewith, against which bears its encircling-spring K, which latter urges the said bolt g always toward the movable staple l?, which is provided with a recess, N, for receiving the same.

The plate e forms a bearing for the outer end of the bolt g, and for the outer extremity of the spring k.

Vhen it is desired to release the movable staple l?, the bolt g is withdrawn from the recess N by means of its thumb-piece L, extending inwardly and projecting beyond the inner lining of the car about the same distance as does the graindoor bar f. The said movable staple P may be withdrawn for attaching the seal E until movement is stopped by its shoulder T coming in contact wit-h the metal plate D, applied by means of screws S upon the outer surface of the easing, and when the said staple l? is in the position last described the bolt g rests upon the flat surface R,surround1ng the recess N, provided near the inner end of the staple.

IVhen it is desired to apply the seal E, door G, to which is attached the usual hasp, A, by means of the staple B, is closed against the easing II. Then the said hasp is placed over the outer end, F, of the movable staple. Then the seal E is hooked thereon andthe movable staple pressed inwardly until the recess or keeper N engages with the springbolt g, after which operation the door cannot be again opened without violence being done to some portion thereof until the seal E has been visibly fractured.

' Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. A seal-lock provided with a hasp and perforated seal, in combination with a movable bolt and a spring-actuated locking-bolt engaging therewith7 said movable bolt having its IOO outer end vbentin such a manner as to enter bolt,` metal plate, hasp, and seal, for the purthe hasp and perforation ofthe seal when poses substantially as shown and described. 1o

pushed inwardly, whereby the oar is locked, In testimony whereof I aflix my signature in substantially as specified. presence of two witnesses.

2. In a seal-look, a movable bolt-having its JOHN M. SMITH. outer end bent in the form of a hook and inl Vitnesses: n ner part provided with a recess and flattened HENRY D. ASHLEY,

place, in combination with a bearing, locking- O'r'ro BEoKE-NBAOH. 

